STORAGE PIT BUILDING METHOD Russian patent published in 2006 - IPC E02D31/00 E02D31/02 E02D31/04 

FIELD: oil industry, particularly oil-field construction, namely to built storage pit adapted for oil-drilling waste storage.

SUBSTANCE: method involves digging out ground; erecting banking; forming waterproofing screen of film material with weld seams; connecting polymeric adhesive strips to back film side transversely to weld seams facing outwards so that space between strips is not more than 3 m and strip ends extend over outer screen surface, wherein the waterproofing screen has ample size; securing one end of waterproofing screen on pit edge by shackles and covering thereof with ground along the full pit edge; gradually laying unstrained waterproofing screen on pit bottom and side walls to reach opposite pit edge so that weld seams face outwards; loading screen edges across the full width and forming pleat at pit edge along the full perimeter thereof; securing the pleat with ground; fastening free edges of laid waterproofing screen along the full pit perimeter with shackles and covering thereof with ground; folding free screen edges in two in shackle installation areas and placing cantledge on pit bottom along the full perimeter thereof; placing textile protective screens over rocky ground zones. The waterproofing screen dimensions may be determined from given relation.

EFFECT: increased liquid product storage reliability.

2 dwg, 1 ex